The Achievement Of Cardiovascular Parameter Detecting System Based On ARM

Cardiovascular disease is one of the most terrible killer in the world,it is caused by hypertension and AS,in the early these symptoms is not obvious,but some of the correlative parameter is changed. So we can diagnose the potential crisis in advance by detecting the cardiovascular parameters,that can also evaluate patients' state and forsee the state of illness. So detect the parameters in time, cardiovasclar would be dignosed as soon as possible,which can save time for prevent and treatment.Plenty of clinical results approve that pulse wave is closely connected to cardiovascular diseases. The system detects the cardiovascular diseases by testing its parameters.Presently the medical appliance transforms from traditional PC and industrial control computer to embedded system.With development of micro-processor,ARM core embedded system will be the main platform for homely used cardiovascular detecting system.The system chooses ARM920 from SamSung as processor, acquire the pulse signal through the pulse sensor using embedded Linux OS.The system can display the pulse wave real-timely,calculate and display the cardiovascular parameters selectively.The paper expounds how to use the pulse wave to calculate the cardiovascular parameters;analyse the hardware platform of the system;Mainly discuss the software developments,include porting the bootloader,Linux OS and the drivers to the ARM board;the development of applications;the graphical interfaces development based on QT. It is a trend that the cardiovascular parameters measurement system has further more precision,systematic integration and miniaturization,the process of parameter abnormity.With the medical treatment develops,the prevent and treatment of cardiovascular need to solve immediately.The cardiovascular detecting system has a wide market,use not only in clinic,but also in family health care.